Cleveland Controls AFS-531-328 Switch 326070-701 the 53DS-900---117 variant is typically

the 53DS-900---117 variant is typically required

Rotation is determined by looking at the hub/bore end of the wheel

including steam tables

This kit includes the necessary solid-state components and lead wires to handle high-amperage cycles without premature thermal degradation

ensuring reliable thermal dissipation even in high-ambient environments

Cleveland Controls AFS-531-328 Switch 326070-701 the 53DS-900---117 variant is typicallyAs a seasoned contractor, you know that proving fan status and monitoring pressure drops requires a switch that doesn't drift. The Cleveland Controls AFS 531 328 is a professional grade differential air pressure switch designed for precision in HVAC, energy management, and industrial ventilation. Featuring a field adjustable setpoint range of 0. 05" to 1. 0" w. c., this unit allows for fine tuning to meet specific economizer or proving switch